about this project. The main body of each safe key box is made of high-strength aluminum alloy, which is anti-corrosion, anti-rust, efficient and durable. The high-quality aluminum alloy body can protect the key box from hammering, sawing, thus protecting your belongings from theft. Our key boxes are large enough. Key Box Portable Mini Size Large interior space allows you to store multiple keys and you can also store small things if needed. Security key box with removable handle. You can hang it exactly where you need it, for indoor and outdoor use, such as doorknobs, gates, fences, cars or anywhere else. No installation tools are required because it does not need to be fixed to the wall and can be removed at any time like a normal padlock. The key safe consists of a 4-digit code with 10,000 possibilities. A 4-digit combination lock is ten times more secure than a 3-digit combination lock, so don't forget the combination. You can choose your preferred number from 10,000 different combinations and easily set or reset your password in minutes. The outdoor security key box is compact and portable, with a wide range of applications, unlimited, exquisite and durable. Suitable for indoor and outdoor use, can be applied to rental (Airbnb), garage, office, school, warehouse, etc.